-30.99% is the change from 213 to 147
Calculation steps:
[( 147 - 213 ) ÷ 213] x 100 = -30.99%
Formula
Percentage change = [(147 - 213) / 213] x 100
Subtract the new number by the original number
147 - 213 = -66
-66 ÷ 213 = -0.30985915492957744
-0.30985915492957744 x 100 = -30.99%